Self-Employed Retirement Plans Estimate the maximum contribution amount for a Self-Employed 401(k), SIMPLE IRA, or SEP. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal. Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more. Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver.